awr desgin air coil ?

Hello i Have question about Awr Desgin
i want one air coil to my schematic bud how works the
N= R= l= RHO= Dia Awg diameter Dia=
maybe someone has an example to me ? maybe a file ?
i think N=numbers turns
R=inside diameter coil ? no ieda
L= coil length
RHO= ? no idea
dia awg diameter awg to diameter?
dia=? no idea

http://www.coilws.com/c_winding_main...0Inductors.pdf

Hi Vfone,


dia awg diameter awg to diameter?
RHO= ? no idea
dia=? no idea
this can no find This is sometimes called